| Subject | Re: [2.4.17/18pre] VM and swap - it's really unusable | From | Robert Love <> | Date | 13 Jan 2002 15:04:35 -0500 |
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On Sun, 2002-01-13 at 14:46, Andrew Morton wrote:
> I can't say that I have ever seen any significant change in throughput > of anything with any of this stuff.
I can send you some numbers. It is typically 5-10% throughput increase under load. Obviously this work won't help a single task on a single user system. But things like (ack!) dbench 16 show a marked improvement.
> Benchmarks are well and good, but until we have a solid explanation for > the throughput changes which people are seeing, it's risky to claim > that there is a general benefit.
I have an explanation. We can schedule quicker off a woken task. When an event occurs that allows an I/O-blocked task to run, its time-to-run is shorter. Same event/response improvement that helps interactivity.
Robert Love
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